Brass liner stuffing-box head



A. D. PURTL.

BRASS LINER STUFFING BOX HEAD.

APPUCATION F L E D 1 A N 2 2 1 9 2 o.

l @94,1145 .Patented 00's. 18, 1921.,

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adjacent its ends,

ENT 'ol-Flon ALBERT D. IPURTLE, @F MARIETTA, OHIO.

BRASS LINER. STUFFING-BOX HEAD.

assente,

Specification of Letters Patent.

Patented @et t8, i921,

Application led January 22, 1920. Serial No. 353,352.

To @ZZ wtom t may concern.' 4

Beit known that l, ALBERT D. PURTLE, a citizen of the United States, residing at Marietta, in the county of Washington and State of 0hio, have invented anew and useful Brass Liner Stuffing-Box Head, of which the following is a specification.

This invention relates to pumps, and more particularly to improved brass liner stuling box heads'thereo The primary object of the invention is to provide a brass liner stuliing box head having novel means for providing a watertight connection between the liner and the head, thus insuring against leakage and consequently reducing the oil wasted, to a minimum.

A further object of the invention is to provide a", device of this character wherein the brass liner may be readily and easily applied to the stuffing box head, in a manner to prevent displacement of the brass liner, when the pump is brought into operation.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what isH claimed, without departing from the spirit of the invention.

Referring to the drawing z y Figure 1 illustrates a longitudinal sectional view through a stuffing box head constructed in accordance with the present invention; and

Fig. 2 illustrates line 2 2 of Fig. 1.,

Feferringto the drawing in detail, the reference character 5 designates the stuiing box head which is formed of any suitable meta-l, the same being relatively longv and having a central bore 6 for accommodating the polished rod and liner, forming elements of the pump. l

As shown, this central bore 6 is enlarged as at 7, the walls of which are threaded as at 8 to receive the threaded followers 9, which followers are of sizes to closely fit over the pump element associated thereWitlL y A portion of the length of the central borg a sectional view taken on 6 has itswalls threaded to receive the upper threaded portion 10 of the liner 11, soy that the liner may be firmly lunited with the stuliingbox head 5, the lower follower 9 being positioned over the liner 11 and having its inner end contacting with the packing material 12, which may be in the form of a circular fibrous material, so that by rotating the follower, the packing gland is firmly wedged against the shoulder .13, formed at the base of the enlargement 7. The follower 9 at the upper end of the stuliing box head is positioned on the polished rod 1 4, and has its inner end contactlng with a fibrous packing gland 15, positioned within the enlargement 7 at the upper end of the stung box head.

Formed within the lstuiling box head 5, is

a lateral opening 16, threaded to receive the set screw 17, the inner end of which is provided with a cutting Y-dge 18 adapted to bite into the polished rod 14 for holding the same in predetermined positions of adjustment, in a manner to eliminate any possibility of the liner moving from its proper position on the polished rod.

Supported on the set screw 17, is a follower 19, which follower has a threaded extension 20 coperating with the threads 21 provided on the inner wall ofthe opening 22, which is in communicationwith the opening 16c Supported between the inner end of the follower 19, and the shoulders formed by the enlarged opening at one end of the opening 16, is a packing gland 23, which packing gland prevents fluid from passing laterally from the stuffing box head.

From the foregoing it is obvious that due to the packing glands 12 and 15, an absolutely water-tight connection is maintained between the stuiing box head, brass liner and polished rod, to the end that oil waste is reduced to a minimum.

Having thus described the invention, what is claimed is:

1. A stuiiing box head havinga central opening, the walls of said opening being threaded throughout a portion of their lengths, said central opening merglng intov enlarged openings at theends thereof, a hner having a threaded extremity coperatmg with the threads of the walls of the central opening for securing the liner tq the stuthng box head, a polished rod operating through the stuffing box head and through the liner, means embracing a portion of the liner and polished rod for providing fluid tight connection therebetween, and means for securing the polished rod against movement withl. in the stuffing box.

l means positioned within the enlarged openings for providing iuid tight connections between the liner and polished rod, and means for securing the polished rod to the stuffing box head.

3. A stufling box head having a central opening, merging into enlarged openings adjacent the ends thereof, a liner positioned within the central opening, a polished rod operating through the stuiiing box head and liner, followers operating in the enlarged openings, packing glands in the openings and adapted to be held therein by the fola central..

lowers, and means for securing the polished rod to the stuffing box head.

4. A stufling box head having a central opening, a liner having one of its ends positioned in the opening, a polished rod operating through the opening, means embracing a portion of the polished rod for providing a fluid tight connection between the stuiing box head and polished rod, means for providing Ya fluid tight connection between the liner and stuling box head, said stuffing box head having a lateral opening, a set screw extending through the lateral opening, and engaging the polished rod for securing the polished lrod to the stuiiing box head, and means for providing a Huid tight connect-ion between the polished rod, stuffing box head and set screw.`

In testimony that I claim the foregoing as my own, I have hereto aixedmy signature l f in the presence of two witnesses.

p ALBERT D. PURTLE.

Witnesses:

WINFIELD S. HANCOCK, FRED C. MYERS. 

